Hexane → HCID 59134418, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of (±)-trans-2,2,9-trimethyl-4-[(2-phenylethyl)amino]-3,4-dihydro-2H-pyrano[2,3-g]quinolin-3-ol (219 mg, 0.60 mmol) in ethyl acetate (3 mL), a solution of maleic acid (77 mg, 0.66 mmol) in ethyl acetate (1 mL) was added dropwise, the resulting reaction solution was cooled to 0° C., hexane (10 mL) was added thereto, and precipitated solid was filtered off to obtain 2,2,9-trimethyl-4-[(2-phenylethyl)amino]-3,4-dihydro-2H-pyrano[2,3-g]quinolin-3-ol 3/2 maleate (yield: 72%).

Provenance & Evidence